/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 * Contains some contributions under the Thrift Software License.
 * Please see doc/old-thrift-license.txt in the Thrift distribution for
 * details.
 */

using System;
using Thrift.Transport;
using Thrift.Protocol;

namespace Thrift.Server
{
    /// <summary>
    /// Simple single-threaded server for testing
    /// </summary>
    public class TSimpleServerBiDir : TServer
    {
        private bool stop = false;

        public TSimpleServerBiDir(TProcessor processor,
                          TServerTransport serverTransport)
            : base(processor, serverTransport, new TTransportFactory(), new TTransportFactory(), new TBinaryProtocol.Factory(), new TBinaryProtocol.Factory(), DefaultLogDelegate)
        {
        }

        public TSimpleServerBiDir(TProcessor processor,
                            TServerTransport serverTransport,
                            LogDelegate logDel)
            : base(processor, serverTransport, new TTransportFactory(), new TTransportFactory(), new TBinaryProtocol.Factory(), new TBinaryProtocol.Factory(), logDel)
        {
        }

        public TSimpleServerBiDir(TProcessor processor,
                          TServerTransport serverTransport,
                          TTransportFactory transportFactory)
            : base(processor,
                 serverTransport,
                 transportFactory,
                 transportFactory,
                 new TBinaryProtocol.Factory(),
                 new TBinaryProtocol.Factory(),
                 DefaultLogDelegate)
        {
        }

        public TSimpleServerBiDir(TProcessor processor,
                          TServerTransport serverTransport,
                          TTransportFactory transportFactory,
                          TProtocolFactory protocolFactory)
            : base(processor,
                 serverTransport,
                 transportFactory,
                 transportFactory,
                 protocolFactory,
                 protocolFactory,
                 DefaultLogDelegate)
        {
        }

        public override void Serve()
        {
            try
            {
                serverTransport.Listen();
            }
            catch (TTransportException ttx)
            {
                logDelegate(ttx.ToString());
                return;
            }

            while (!stop)
            {
                TTransport client = null;
                TTransport inputTransport = null;
                TTransport outputTransport = null;
                TProtocol inputProtocol = null;
                TProtocol outputProtocol = null;
                try
                {
                    using (client = serverTransport.Accept())
                    {
                        if (client != null)
                        {
                            using (inputTransport = inputTransportFactory.GetTransport(client))
                            {
                                using (outputTransport = outputTransportFactory.GetTransport(client))
                                {
                                    inputProtocol = inputProtocolFactory.GetProtocol(inputTransport);
                                    outputProtocol = outputProtocolFactory.GetProtocol(outputTransport);
                                    //processor.SetProtocol(inputProtocol, outputProtocol);
                                    while (processor.Process(inputProtocol, outputProtocol)) { }
                                }
                            }
                        }
                    }


                }
                catch (TTransportException ttx)
                {
                    // Client died, just move on
                    if (stop)
                    {
                        logDelegate("TSimpleServerBiDir was shutting down, caught " + ttx.GetType().Name);
                    }
                }
                catch (Exception x)
                {
                    logDelegate(x.ToString());
                }
            }

            if (stop)
            {
                try
                {
                    serverTransport.Close();
                }
                catch (TTransportException ttx)
                {
                    logDelegate("TServerTranport failed on close: " + ttx.Message);
                }
                stop = false;
            }
        }

        public override void Stop()
        {
            stop = true;
            serverTransport.Close();
        }
    }
}
